WHAT MARK LEVIN DIDN'T TELL US ABOUT THE FEDERAL RESERVE SYSTEM

Yesterday he said that it's only task is to preserve the value of the dollar but thanx to reading Atrios' blog, I know that's not true.  This is from the Fed:

The Federal Reserve sets the nation’s monetary policy to promote the objectives of maximum employment, stable prices, and moderate long-term interest rates. The challenge for policy makers is that tensions among the goals can arise in the short run and that information about the economy becomes available only with a lag and may be imperfect.